I find Kropotkin's writing to be some of the most accessible of the communism 101 books I've read. It's still dense and a little dated but the concepts he talks about are still incredibly relevant to today society (though of course the examples of factory and agricultural work could use an update). 

-1/4 stars because he drops an N-bomb in the very last chapter. My guy... You were so close to being an unproblematic fav. 😭